223504531245 has 48 divisors (see below), whose sum is σ = 405789246720. Its totient is φ = 113586029568.

The previous prime is 223504531219. The next prime is 223504531267. The reversal of 223504531245 is 542135405322.

223504531245 is a `hidden beast` number, since 2 + 23 + 504 + 5 + 3 + 124 + 5 = 666.

It is not a de Polignac number, because 223504531245 - 2⁸ = 223504530989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138340 + ... + 682749.

It is an arithmetic number, because the mean of its divisors is an integer number (8453942640).

Almost surely, 2^223504531245 is an apocalyptic number.

It is an amenable number.

223504531245 is a deficient number, since it is larger than the sum of its proper divisors (182284715475).

223504531245 is a wasteful number, since it uses less digits than its factorization.

223504531245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821386 (or 821383 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 223504531245 its reverse (542135405322), we get a palindrome (765639936567).

The spelling of 223504531245 in words is "two hundred twenty-three billion, five hundred four million, five hundred thirty-one thousand, two hundred forty-five".